[INFO] crate cuckoo_miner 0.5.2 is already in cache
[INFO] testing cuckoo_miner-0.5.2 against 1.45.2 for beta-1.46-1
[INFO] extracting crate cuckoo_miner 0.5.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cuckoo_miner 0.5.2 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cuckoo_miner 0.5.2
[INFO] finished tweaking crates.io crate cuckoo_miner 0.5.2
[INFO] tweaked toml for crates.io crate cuckoo_miner 0.5.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 04e32fa5365cc15bbcde47bc344946d1161dc271dabdda7762fcbf7bf42a424b
[INFO] running `Command { std: "docker" "start" "-a" "04e32fa5365cc15bbcde47bc344946d1161dc271dabdda7762fcbf7bf42a424b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04e32fa5365cc15bbcde47bc344946d1161dc271dabdda7762fcbf7bf42a424b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04e32fa5365cc15bbcde47bc344946d1161dc271dabdda7762fcbf7bf42a424b", kill_on_drop: false }`
[INFO] [stdout] 04e32fa5365cc15bbcde47bc344946d1161dc271dabdda7762fcbf7bf42a424b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a5225cb21318696d666f91952d5cb90a259fd63b9aa8e686e836e6b71ed92c8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4a5225cb21318696d666f91952d5cb90a259fd63b9aa8e686e836e6b71ed92c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling slog v2.1.1
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling fs_extra v1.1.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling crossbeam-channel v0.4.3
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling cuckoo_miner v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stdout] warning: unused import: `sanity::Finder`
[INFO] [stdout]   --> src/build.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use sanity::Finder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Finder`
[INFO] [stdout]   --> src/sanity.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct Finder {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sanity.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `maybe_have`
[INFO] [stdout]   --> src/sanity.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn maybe_have<S: AsRef<OsStr>>(&mut self, cmd: S) -> Option<PathBuf> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slog-async v2.5.0
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chrono v0.4.13
[INFO] [stderr] error: could not compile `regex-syntax`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.5.6/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=73b9402cc491e1f8 -C extra-filename=-73b9402cc491e1f8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-cf5f24969cc5fdd5.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4a5225cb21318696d666f91952d5cb90a259fd63b9aa8e686e836e6b71ed92c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a5225cb21318696d666f91952d5cb90a259fd63b9aa8e686e836e6b71ed92c8", kill_on_drop: false }`
[INFO] [stdout] 4a5225cb21318696d666f91952d5cb90a259fd63b9aa8e686e836e6b71ed92c8